Merrell Moab Hiker Crew Hiking Socks - Enhanced with sustainable Coolmax EcoMade moisture management technology and Friction-reducing technology. CoolMax EcoMade technology provides sustainable, moisture managment to keep feet dry Friction-reducing technology is plaited in the heel and toe to prevent blisters and add durability Smooth toe closure for comfort minimizes friction which prevents chafing on the top of the foot for ultimate comfort Deep heel pocket to prevent the sock from slipping in your shoe Arch band support to fight fatigue Extended zoned cushion through the back of ankle, heel and toe